Effect of substituting soybean meal by nigella sativa meal on the performance of different local strains of laying hens [electronic resource].

Includes references.

This study was conducted to determine the effect of partially and completely replacing of soybean meal (SBM) protein with Nigella Sativa meal (NSM) protein on laying performance, economical efficiency as well as nutrient digestibility of experimental diets. A total of 360 hens and 40 cocks (28week of old)from Bandarah (BA), Gimmizah (GM), Dandarawi (DA) and Dokki-4 (DK¬4) Egyptian local strains (90 hens plus 10 cocks each strains) was used in this experiment. The experimental birds were divided into 5 equal groups (18hens +2 cocks each). Five experimental corn ¬ soyabean meal layer diets were formulated from a layer basal diet by partially and completely replacing SBM protein with NSM protein at replacement ratios of 0 (control), 25, 50, 75, 100 %during the experimental period (20 weeks). The results obtained were as follows: Body weight and Body weight change were insignifical1tly different between diets containing NSM and control groups in all strains. Egg number was significantly higher in diets containing NSM compared to the control groups in all strains. Egg weight was insignificantly different between diets containing NSM and control groups in all strains, except diets containing 50% NSM that was significantly higher. Feed intake was significantly higher in diets containing NSM compared to the control groups in all strains. Feed conversion ratio was significantly better in diets containing NSM compared to the control groups in all strains, except 100% that was similar to control groups.

Summary in Arabic.

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